baber/WOPTO huggingface dataset:
Patent GB-1234078-A (GB)
IPC: C04B28/18
Filed: 1968-05-24
Abstract: 1,234,078. Porous compositions. COYNE CYLINDER CO. 24 May, 1968, No. 24908/68. Heading C1H. [Also in Division F4] A filler for acetylene cylinders comprises lime and expanded perlite. The filler can also contain fibrous asbestos, diatomaceous earth and/or charcoal. An aqueous slurry of the filler is poured into evacuated cylinders and heated at 400‹ F. under the saturated vapour pressure of water, the pressure is then released and the cylinders dried at 400‹ F.
Patent GB-1238583-A (GB)
IPC: H05H7/10
Filed: 1969-08-15
Abstract: 1,238,583. Cyclic particle accelerators. CYCLOTRON CORP. 15 Aug., 1969 [12 Nov., 1968], No. 40865/69. Heading H1D. A beam of charged particles is extracted from an isochronous cyclotron by deflecting the particles from an orbit at an extraction radius near the fringe of the guiding magnetic field by exposing them to an electrostatic field the boundaries of which increase in radius with respect to the centre of the cyclotron, in the direction of the orbiting particles, and then, within the fringe of the magnetic field, exposing the deflected beam to a region of magnetic field having an increasing gradient to focus the beam of particles radially. The electrostatic beam deflector 30 is mounted in the median plane between the dees of the machine and overlies and is pivotally mounted on one of the shaped hill plates 9 of the main magnet which provide the azimuthally varying field. Deflector 30 comprises a curved tungsten septum 35 held at ground potential and a curved hollow copper deflector electrode 36 which define a shaped electrostatic channel 37 with a high electric field gradient. Septum 35 is clamped between a water-cooled non-magnetic baseplate 38 mounted on hill plate 9 and an upper cooling plate 39. A pair of alumina insulators 46 cantilevered from brackets 47 on base-plate 38 support the deflector electrode 36, which has a coolant fluid circulating through it supplied by hollow conductors 48a, 48b which also provide the electrical potential supply. The radially focussing magnetic field region is formed by a magnetic channel, Figs. 6 and 7 (not shown), in which two iron bars (60) are held on opposite sides of the medium plane to concentrate the lines of force in the fringe guiding magnetic field to increase the field strength in the channel location. Alternatively, similarly placed electromagnet coils may be used to provide this increasing gradient magnetic field. Harmonic coils 48, Fig. 2, may be provided to create coherent oscillation of the orbiting particles at the extraction radius to steer the beam of particles into the entrance of the electrostatic field by separating the spacing of adjacent orbits sufficiently to cause the beam to jump the septum 35.
Patent GB-1250293-A (GB)
IPC: E04C2/38
Filed: 1970-04-08
Abstract: 1,250,293. Laminated panels. Y. OHKAWA. 8 April, 1970, No. 16582/70. Heading B5N. [Also in Divisions E1-E2] A wall panel 16 comprises waterproof plywood sheets 21, 21 adhesively secured or nailed to a wooden frame 20 with the outer surface covered by an iron or steel sheet 22 and the inner surface covered by isocyanate foam material 23 with leather cloth 24 bonded thereto. The panel 16 is secured to superimposed panels 17, 18 by tongue and groove connections 25, 26 and the composite construction 16, 17, 18 surrounded by a metal framework 27.
Patent GB-1250470-A (GB)
IPC: B01D39/16
Filed: 1968-11-07
Abstract: 1,250,470. Filter press plates. DYNAMIT NOBEL A.G. 7 Nov., 1968 [14 Nov., 1967], No. 52865/68. Heading B1D. [Also in Division C3] The invention comprises a filter press plate formed from a polymer of formula where n is greater than 20 and R is a direct bond or is an aliphatic cycloaliphatic or aromatic radical, and -O- or -S- atom or a -SO- or -SO 2 - group. A specific material mentioned is the condensation product of 4,4'-dichlorodiphenyl sulphone with Bisphenol A. The filter plate may be made from the polymer by injection moulding, extrusion or pressing.
Patent GB-1251770-A (GB)
IPC: B24D11/02
Filed: 1970-06-15
Abstract: 1,251,770. Abrasive tools. NORTON CO. 15 June, 1970 [19 June, 1969], No. 28850/70. Heading B3D. A cut-off wheel having a diameter to thickness ratio of at least 40 comprises abrasive grains bonded in an organic polymer matrix, and at least one woven glass cloth disc located within the bonding matrix and parallel to the side faces of the wheel, the warp and weft of the glass cloth consisting of bundles of continuous filaments having a maximum twist per inch of 1À5. The organic polymer matrix may be a phenol-formaldehyde condensation resin, a matrix of hydrocarbon rubber and a phenolformaldehyde condensation resin, or shellac. The glass cloth disc 32 extends from the periphery 34 to a point 36 spaced from the centre hole 38, and is treated with silane to improve adhesion to the organic matrix which includes abrasive grains of aluminium oxide. Where more than one glass cloth disc is used, the warp and weft of one disc are arranged at 450 to those of the other. The warp and weft strands 16, 18 may be woven, as shown in Fig. 2, or the warp strands may merely be placed over the weft strands. In another arrangement, the strands are radially orientated with a single strand in the form of a flat spiral, or a plurality of concentric strands woven through the radial strands. The cut-off wheel, which may be 20 inch in diameter and 0À18 inch thick, is stated as being operable at 23,000 s.f.p.m.
Patent GB-1252546-A (GB)
IPC: B63B3/08
Filed: 1970-04-23
Abstract: 1,252,546. Collapsible pontoons. DR.-ING. h.c.F. PORSCHE K.G. 23 April, 1970 [30 May, 1969], No. 19513/70. Heading B7A. Each of the pontoons forming a multiple hull boat comprises a series of detachable water-tight chambers 5, 6 provided with interlocking ribs 15-18 and interconnected by bands 19 which engage channel section grooves 11, 12 crimped around the ends of the containers. Bands 19 comprise rigid portions 20 which support transverse structural tubes 24 and are connected by screw couplings 33, 34 with re-inforced straps 21. The chambers are of either metal or plastics material.
Patent GB-1259140-A (GB)
IPC: C12C3/12
Filed: 1969-06-13
Abstract: 1,259,140. Hop extracts. WHITE TOMKINS Ltd. 5 June, 1970 [13 June, 1969], No. 30218/69. Heading C2C. [Also in Division C6] Hop iso-alpha-acids are produced by a process involving extracting a solution of the resinous constituents of hops in a waterimmiscible solvent (typically, methanol, dichloromethane or toluene) with aqueous alkali having a pH sufficiently high (exemplified by 12À0-12À5) to extract both the hop alpha acids and the beta acids, separating the alpha and beta acids in the alkaline extract by contacting it with a water-immiscible organic solvent, the pH being adjusted to between 9À0 and 11À0 so that the alpha acids remain in the aqueous phase as salts while the beta acids are extracted into the organic phase as free acids, separating the aqueous phase and isomerizing the alpha acids therein to obtain a bittering additive containing hop iso-alpha-acids. The iso-alphaacids may then be extracted with a waterimmiscible organic solvent at pH 2-10 and recovered by evaporation of the organic solvent with the addition of sufficient water to ensure complete removal of the solvent, followed by further concentration under vacuum to yield a product with a defined content of iso-alphaacids. The acids may, if desired, be recovered in the form of their alkali metal salts.
Patent GB-1264364-A (GB)
IPC: H02M3/00
Filed: 1969-01-21
Abstract: 1,264,364. Control of D.C. motors; converting. TECHNION RESEARCH & DEVELOPMENT FOUNDATION Ltd. 21 Jan., 1970 [21 Jan., 1969], No. 3318/69. Headings H2F and H2J. [Also in Division G3] The voltage and current through a load 3 are regulated by a circuit 1 interposed between the load and a D.C. source 2 and comprising switches 4 ... 7 which are simultaneously opened and closed in pairs 4, 7 and 5, 6 so that an alternating voltage is established across a capacitor 8, the frequency of which may be varied to vary the reactance of the capacitor and hence the supply to the load. Members 4-7 may be mechanical switches or power transistors or thyristors. An embodiment using the latter is described, Fig. 2 (not shown), the triggering frequency being varied by :a conventional firing circuit. The D.C. supply 2 may be derived from a three-phase A.C. supply through a transformer and rectifier, Figs. 4 and 5 (not shown). The load 3 may be an electric motor, furnace or lighting installation, an operating parameter of which may be controlled by varying the frequency of switching. Stabilization of the parameter may be obtained by the provision of a feedback circuit controlling the frequency.
Patent GB-1265371-A (GB)
IPC: G21F5/02
Filed: 1969-04-02
Abstract: 1,265,371. Automatic density control. REPUBLIC STEEL CORP. April 2, 1969 [April 10, 1968], No. 17152/69. Heading G3R. The bulk density of a granular material - fluid mixture is measured by counting pulses representing the amount of radiation emanating from the mixture when exposed to a radiation source, this measurement together with a measurement of the rate of addition of one fluid to the mixture being used to control the rate of addition of another fluid to maintain the bulk density at a desired value. In Fig. 1, coal 10 is supplied by a conveyer 11 to a hammermill 12 and the crushed output is transported by conveyers 13 and 15 to a coking oven (not shown). The coal on conveyer 15 passes beneath a member 19, shaped to avoid build-up of coal, which is a fixed distance from the conveyer so that the output of a gauge 23, responsive to radiation from a radioactive source 21 passing through a given depth of coal, is a measure of the density of the coal. The drop between conveyers 13 and 15, which is adjustable, is made equal to the fall into the coking oven but, as an alternative, loaded members pressing on the coal, or a paddle wheel striking the coal, may produce an equivalent compensating effect. The electrical signal from gauge 23 has a pulse repetition rate corresponding to the density and the pulses are periodically counted and converted into analogue signals in a recorder/controller 25 involving solid-state, logic and timing circuitry. Within a normal predetermined range of density variations, the density is restored to a desired value by automatic proportional and integral control of a pneumatically actuated valve 29, which governs the amount of oil added to the coal through a conduit 17, and step by step control of a pneumatically actuated valve 27 which governs the amount of water added to the coal through a conduit 16. A signal from an oil flow transducer 100a maintains oil flow within a predetermined range by over-riding the control of water valve 27. Alternatively water flow could be maintained within a predetermined range by utilizing water flow to over-ride the control of oil valve 29. If coal density gets above the normal range, a solenoid 94 closes to cut off the oil supply and the water supply is increased up to a maximum in an attempt to correct the density. If the density is outside still wider limits, solenoid valves 94 and 95 close to cut of the oil and water supply. Arm 33 or 65 also closes valves 94, 95 if the level of coal is insufficient on conveyer 15 or 11 respectively. Valve 29 may be controlled manually and changeover from automatic to manual control or vice versa is arranged without shock. On shut down of the control system, solenoid valves associated with the actuator of oil valve 29 maintain the pneumatic control signal so that, on re-starting, the oil valve is restored for a short period to the position it had at shut-down. This period is also the minimum period between changes in the setting of water valve 27. There is provision for operation without coal for the purposes of calibration.
Patent GB-1266086-A (GB)
IPC: H01S5/0683
Filed: 1970-06-10
Abstract: 1,266,086. Lasers. WESTERN ELECTRIC CO. Inc. 10 June, 1970 [16 June, 1969; 1 Dec., 1969], No. 28087/70. Heading H1C. A semi-conductor laser is operated under conditions of temperature and pumping energy such that self-induced or spontaneous pulses having a microwave repetition rate occur in its output, the pulse width and repetition rate being stabilized by a feedback signal related to the repetition rate by the ratio of two integral numbers. In Fig. 1 a GaAs diode is operated at 77-110‹ K., and with a continuous injection current of 1-2 times the lasing threshold current. Part of the diode output is received by a photodetector and amplified at 15. The resulting microwave signal is added to the pumping current to stabilize the repetition rate and narrow the pulse width, the diode being located in a microwave transmission line. In Fig. 2 (not shown), a second optical resonator provides direct optical feedback, while in Fig. 3 (not shown), the laser diode is placed in a microwave resonator. The latter embodiment operates by building up the very slight modulation of the pumping current caused by the spontaneous pulsing. In Fig. 4, this slight modulation, or a harmonic thereof, is passed via microwave circulator 45 to amplifier 46 and phase shifter 47 before being fed back to the pump circuit to stabilize the diode output. The phase shifter can be controlled by information source 48 to position modulate the output pulses and hence transmit the information. The feedback may also be applied to semi-conductor lasers pumped optically or by an electron beam.
Patent GB-1287979-A (GB)
IPC: B65D5/49
Filed: 1970-07-03
Abstract: 1287979 Partitions for cartons REED INTERNATIONAL Ltd 16 June 1971 [3 July 1970] 32477/70 Heading B8P A partition has a triangular slot 3 terminating at a shoulder 4, and a cut 5 extending between the slot 3 and a circular cut-out 6 which has a diameter greater than the length of the cut 5. Alternative embodiments wherein the cut 5 forms one or two lugs 7 are disclosed. When fitted together the lug or lugs 7 of one partition enter the cut-out 3 of another partition. Identical partitions of each embodiment may be fitted together or a partition of one embodiment may be fitted with a partition of the other embodiment, or a partition of either embodiment may be fitted with a plain sheet or a sheet provided only with an aperture and slot in the same relative positions as each cut-out 3 and slot in the partition of the invention.
Patent GB-1288760-A (GB)
IPC: G04G3/02
Filed: 1968-12-10
Abstract: 1288760 Electric clocks SMITHS INDUSTRIES Ltd 5 Dec 1969 [10 Dec 1968] 58758/68 Heading G3T [Also in Division H3] An electric clock comprises a crystal oscillator including an AT-cut crystal 13, a metal oxide semi-conductor integrated divider circuit 17 and an indexing system for the time display, the high frequency signals provided by the oscillator being divided by the divider circuit and supplied to the indexing system. The divider circuit and the oscillator maintaining circuit are made from a metal oxide silicon transistor chip which is hermetically sealed together with the crystal in a container. The crystal is made of quartz and oscillates at a frequency of about one megahertz, this frequency being divided by twenty binary divider stages to supply a one hertz signal to the clock mechanism.
Patent GB-1289057-A (GB)
IPC: C07C45/35
Filed: 1970-12-23
Abstract: 1289057 Oxidation catalysts UBE INDUSTRIES Ltd 23 Dec 1970 61061/70 Heading B1E [Also in Divisions Cl and C2] Catalysts for the oxidation of propylene or isobutylene to acrolein and methacrolein respectively comprise (a) a bismuth antimonate and (b) at least one member selected from bismuth molybdates, bismuth tungstates, molybdenum oxides, tungsten oxides, vanadium oxides uranium oxides and iron oxides, the weight ratio of (a) to (b) being from 10:90 to 90:10. They are prepared by kneading the components with water to form a paste, drying and dressing to 14-20 mesh (Tyler).
Patent GB-1289164-A (GB)
IPC: H04B10/2507
Filed: 1969-10-28
Abstract: 1289164 Electroluminescence AGA AB 28 Oct 1969 [15 Nov 1968] 52717/69 Heading C4S [Also in Divisions G1 and H4] A light transmitter comprises a non-coherent light emitting surface (e.g. PNP device, Fig. 3 (not shown)) and is modulated by a signal source, the emitted light is formed into a beam and impinges on the input surface of a light translator which also has an output surface, the translator being a plurality of light conductors connected in random order from said input to said output surfaces. In a range finder source LT is modulated by sine wave source SS. Lens system OS1, OS2 forms the light into a beam and a bundle of optical fibres LC forms the light translator. Thus, although the phase of the light emitted by device LT, e.g. semi-conductor or Kerr cell varies over the surface the phase of the transmitted beam is averaged. The reflected beam is compared in a phase comparator with the modulating source and adjustment of a delay line gives zero phase difference, the length of the delay line indicating range. A further translator may be arranged in front of the photomultiplier in the receiver.
Patent GB-1296794-A (GB)
IPC: C08F26/06
Filed: 1971-04-19
Abstract: 1296794 Photoconductive member ADDRESSOGRAPH-MULTIGRAPH CORP 19 April 1971 [16 April 1970] 23793/71 Heading H1K A photoconductive member comprises a conductive support having. applied thereto a polymer of formula wherein R 1  and R 2  are fused arenic ring structures having 4, 8 or 12 carbon atoms, one of the ring structures has at least 8 carbon atoms, furthermore one of the ring structures is substitutedwith an atom of iodine and n is greater than one. In the embodiments an iodinesubstituted polyvinyl carbazole is mixed with 2, 4, 7-trinitrofluorenone in an organic solvent and coated on an aluminized polyester sheet.
Patent GB-1305896-A (GB)
IPC: G10H1/34
Filed: 1969-02-07
Abstract: 1305896 Electronic organ PLAYART Ltd 4 Feb 1970 [7 Feb 1969] 6864/69 Heading G5J [Also in Division H1] An electronic organ has hollow keys 2 made of a thermoplastics material, and formed with tongues 4 fitted into recesses 12 in a support 10. When the key is depressed the tongues flex, and the movement of the keys is limited by the lip 19 of the casing, and by the foamed plastics strip 18. Each key is fitted with a pair of resilient contacts (22), Fig. 3 (not shown), which bridge two areas (26, 28), Fig. 4 (not shown), of circuit board 30, slight sliding taking place upon contact, to connect a resistance into an oscillator whose frequency thus depends on the particular key pressed. Alternatively each key may have its own oscillator, or oscillators. In Figs. 5-8 (not shown) each key has a single contact (34) formed into a tab (38) with resistors (R) interconnecting the tabs, depression of any key determining what portion of a series resistance chain is connected into the oscillator circuit via contact bar (40).
Patent GB-1314020-A (GB)
Title: Heat insulated containers
IPC: B65D81/38
Filed: 1969-12-18
Abstract: 1314020 Bags W A DODD 19 April 1971 [18 Dec 1969] 61655/69 Heading A4G [Also in Division F4]  A container for the tranportation of hot food comprises a bag 10 of plastics, leather or textile material with a detachable lining of fibrous or cellular heat insulating material 24 and a plurality of metal or vacuum flasks. The insulating material being shaped so as to define a plurality of pockets conforming to the shape of the flasks. A clock (18) Fig. 1 (not shown) may be fixed to the outside of the bag.
Patent GB-1315052-A (GB)
Title: Preparation of cycloalkanones and cycloalkanols
IPC: C07C45/53
Filed: 1971-05-14
Abstract: 1315052 Preparation of cycloalkanones and cycloalkanols RHONE-POULENC SA 14 May 1971 [15 May 1970] 15017/71 Heading C2C  A process for the continuous preparation of a mixture of a cycloalkanone and cycloalkanol by oxidation of a cycloalkane in the liquid phase by means of a gas containing molecular oxygen, followed by heating the resulting solution of cycloalkyl hydroperoxide in the corresponding cycloalkane at 80-150 C. in the presence of a soluble chromium compound as a catalyst, is characterized in that at least a part of the heating of the hydroperoxide solution is carried out in the presence of a mono-ester or diester of orthophosphoric acid which is soluble in the reaction medium. The preferred orthophosphate ester has the formula  in which R represents a C 1-18  hydrocarbon radical, and R 1  represents a hydrogen atom or a C 1-18  hydrocarbon radical, R and R 1  being the same or different, at least one of R and R 1  having more than three carbon atoms.
Patent GB-1315954-A (GB)
Title: Tensioner for a belt chain cable or like member
IPC: F16H7/12
Filed: 1969-09-18
Abstract: 1315954 Belt tensioning devices COVRAD Ltd 9 Sept 1970 [18 Sept 1969] 46007/69 Heading F2Q Belt tensioning means comprises a pulley 18 mounted on an axle 16 rotatably mounted at the end of a pivoted arm 12, the pulley 18 being urged into contact with a belt 31 under the action of a screw 20 and nut 26 located in a spool 25 to which a substantially constant torque is applied by a spring 30. One end of the spring 30 is attached to the spool 25 and the other end is secured to a spool 27 journalled on a pin 28 secured to a sheet-metal structure 29. The tensioner may be applied to tensioning a chain or cable. A bearing pad may replace the pulley 18. Furthermore, the torque may be generated by a spiral spring or by a weight hanging on a cord wrapped around the spool 25.
Patent GB-1324141-A (GB)
Title: Glow-discharge electron guns
IPC: H01J37/077
Filed: 1971-01-29
Abstract: 1324141 Electron guns GENERAL ELECTRIC CO Ltd 28 Jan 1972 [29 Jan 1971] 3480/71 Heading H1D An electron gun of the glow discharge type for producing an annular beam, comprises an annular anode structure and an annular cathode structure comprising a plurality of cathodes each connected by its own ballast impedance to a power supply. In Fig. 1, the anode comprises two tubular portions 2 and 3 separated by an annular gap 4, and a pair of annular cathodes 5 and 6 are disposed round the anode. When the enclosure is evacuated and filled with argon at 10-100 millitorr, and a few kilovolts are applied between the anode and the cathodes, a self-sustaining glow discharge occurs and electrons produced at the cathodes by ion bombardment converge at a point 7 where they may heat a workpiece ; the electron beam current is greater than if the cathodes are connected together. In another arrangement, Figs. 2 and 3 (not shown), overlapping annular cathode segments are enclosed within an annular anode structure provided with a circular aperture to allow the passage of a cylindrical electron beam. In a modification illustrated in plan in Fig. 5, the cathode segments 45-48 are separated by L-shaped gaps 44 and the anode is provided with arcuate slots 49-52 corresponding to the cathodes; the beam from each cathode comes to a line focus, and the line foci join to form a continuous annular beam on the work.
Patent GB-1330533-A (GB)
Title: Seat frames for vehicle seats
IPC: B60N2/235
Filed: 1970-07-06
Abstract: 1330533 Adjustable backrests H R TURNER (WILLENHALL) Ltd 2 Sept 1971 [6 July 1970] 32664/70 Heading A4J The seat mechanism described in Specification 1304358 is modified by forming the back rest frame as an inverted U-shape tube, the lower portions of the side limbs of the U-shaped tube being flattened and provided with teeth which mesh with those on the plate attached to the seat cushion frame. The teeth may be formed on a plate located in the flattened lower portions and welded thereto.